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Implement trivial WSDISPLAYIO_SVIDEO that flips DON bit in LCDLDR1. 

This only turns off the display in the LCD controller.

TODO: Need to add a platform specific way to turn the screen on and
off as well (e.g. on Jornada 680 this is bit 0 in hd64461 GPIO port B).
This commit is contained in:
uwe 2003-11-09 02:05:42 +00:00
parent 680e83de11
commit 9df7e01734
1 changed files with 47 additions and 2 deletions
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49
sys/arch/hpcsh/dev/hd64461/hd64461video.c
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@ -1,4 +1,4 @@
/* $NetBSD: hd64461video.c,v 1.20 2003/11/01 03:45:52 uwe Exp $ */
/* $NetBSD: hd64461video.c,v 1.21 2003/11/09 02:05:42 uwe Exp $ */
/*-
* Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: hd64461video.c,v 1.20 2003/11/01 03:45:52 uwe Exp $");
__KERNEL_RCSID(0, "$NetBSD: hd64461video.c,v 1.21 2003/11/09 02:05:42 uwe Exp $");
#include "debug_hpcsh.h"
// #define HD64461VIDEO_HWACCEL
@ -111,6 +111,7 @@ STATIC struct hd64461video_chip {
struct hpcfb_fbconf hf;
u_int8_t *off_screen_addr;
size_t off_screen_size;
int blanked;
int console;
} hd64461video_chip;
@ -130,6 +131,9 @@ STATIC void hd64461video_set_clut(struct hd64461video_chip *, int, int,
u_int8_t *, u_int8_t *, u_int8_t *);
STATIC void hd64461video_get_clut(struct hd64461video_chip *, int, int,
u_int8_t *, u_int8_t *, u_int8_t *);
STATIC void hd64461video_off(struct hd64461video_chip *vc);
STATIC void hd64461video_on(struct hd64461video_chip *vc);
#if notyet
STATIC void hd64461video_set_display_mode(struct hd64461video_chip *);
STATIC void hd64461video_set_display_mode_lcdc(struct hd64461video_chip *);
@ -403,11 +407,29 @@ hd64461video_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
struct hpcfb_fbconf *fbconf;
struct hpcfb_dspconf *dspconf;
struct wsdisplay_cmap *cmap;
int turnoff;
u_int8_t *r, *g, *b;
int error;
size_t idx, cnt;
switch (cmd) {
case WSDISPLAYIO_GVIDEO:
*(u_int *)data = sc->sc_vc->blanked ?
WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON;
return (0);
case WSDISPLAYIO_SVIDEO:
turnoff = (*(u_int *)data == WSDISPLAYIO_VIDEO_OFF);
if (sc->sc_vc->blanked != turnoff) {
sc->sc_vc->blanked = turnoff;
if (turnoff)
hd64461video_off(sc->sc_vc);
else
hd64461video_on(sc->sc_vc);
}
return (0);
case WSDISPLAYIO_GETCMAP:
cmap = (struct wsdisplay_cmap*)data;
cnt = cmap->count;
@ -907,6 +929,8 @@ hd64461video_update_videochip_status(struct hd64461video_chip *hvc)
break;
}
hvc->blanked = 0; /* XXX */
width = bootinfo->fb_width;
height = bootinfo->fb_height;
@ -1060,6 +1084,27 @@ hd64461video_get_clut(struct hd64461video_chip *vc, int idx, int cnt,
}
}
void
hd64461video_off(struct hd64461video_chip *vc)
{
u_int16_t r;
r = hd64461_reg_read_2(HD64461_LCDLDR1_REG16);
r &= ~HD64461_LCDLDR1_DON;
hd64461_reg_write_2(HD64461_LCDLDR1_REG16, r);
}
void
hd64461video_on(struct hd64461video_chip *vc)
{
u_int16_t r;
r = hd64461_reg_read_2(HD64461_LCDLDR1_REG16);
r |= HD64461_LCDLDR1_DON;
hd64461_reg_write_2(HD64461_LCDLDR1_REG16, r);
}
#ifdef HD64461VIDEO_DEBUG
void
hd64461video_info(struct hd64461video_softc *sc)